Tool 170i1000M125A

Hardened steels punish cutting edges and reveal every imperfection in surface finish. The 190 Series distributes cutting forces across nine flutes, with each tooth removing minimal material per revolution.

That R0.004" corner radius prevents microchipping at the cutting edge while maintaining sharp geometry for fine finishes.
The TiAlSiN coating handles the heat generated in steel, iron, titanium, and nickel alloys without building up on the edge.
Heat is the enemy of finish quality.
This geometry works in hardened steels where you need mirror finishes and dimensional control.
Demands high spindle speeds and a setup with minimal deflection.
The light chip load per tooth means feed rates stay conservative.
Not intended for material removal or interrupted cuts.